Obs. : 2023-04-10
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.949e+08
Venus      8.923e+08
Earth      8.972e+08
Mars       8.771e+08
Jupiter    8.958e+08
Saturn     8.962e+08
Uranus     8.949e+08
Neptune    8.952e+08
Pluto      9.024e+08